670670678540 has 24 divisors (see below), whose sum is σ = 1426236383040. Its totient is φ = 264872469888.

The previous prime is 670670678501. The next prime is 670670678593. The reversal of 670670678540 is 45876076076.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212235977 + ... + 212239136.

It is an arithmetic number, because the mean of its divisors is an integer number (59426515960).

Almost surely, 2^670670678540 is an apocalyptic number.

It is an amenable number.

670670678540 is an abundant number, since it is smaller than the sum of its proper divisors (755565704500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670670678540 is a wasteful number, since it uses less digits than its factorization.

670670678540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424475201 (or 424475199 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 670670678540 in words is "six hundred seventy billion, six hundred seventy million, six hundred seventy-eight thousand, five hundred forty".